algebra

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a bank opens with $4.05 in nickels and pennies. There are 157 coins in total. how many nickels and how many pennies

  • algebra -

    X = The # of nickels.
    (157 - X) = The # of pennies.

    5X + 1(157-X) = 405 Cents.
    5X + 157 - X = 405,
    4X = 405 - 157 = 248,
    X = 62 Nickels.
    157 - X = 157 - 62 = 95 Pennies.

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